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author | Andrew Morton <akpm@linux-foundation.org> | 2010-12-02 22:31:19 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-02 22:51:15 (GMT) |
commit | 4fe65cab844e6d3d7d310e66a501d5e7242ecb54 (patch) | |
tree | 46d80c5091d14a9d2492d1e49e421a2c6ae889bd /Documentation/filesystems | |
parent | 64141da587241301ce8638cc945f8b67853156ec (diff) | |
download | linux-4fe65cab844e6d3d7d310e66a501d5e7242ecb54.tar.xz |
Documentation/filesystems/vfs.txt: fix ->repeasepage() description
->releasepage() does not remove the page from the mapping.
Acked-by: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r-- | Documentation/filesystems/vfs.txt | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index ed7e5ef..55c28b7 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -660,11 +660,10 @@ struct address_space_operations { releasepage: releasepage is called on PagePrivate pages to indicate that the page should be freed if possible. ->releasepage should remove any private data from the page and clear the - PagePrivate flag. It may also remove the page from the - address_space. If this fails for some reason, it may indicate - failure with a 0 return value. - This is used in two distinct though related cases. The first - is when the VM finds a clean page with no active users and + PagePrivate flag. If releasepage() fails for some reason, it must + indicate failure with a 0 return value. + releasepage() is used in two distinct though related cases. The + first is when the VM finds a clean page with no active users and wants to make it a free page. If ->releasepage succeeds, the page will be removed from the address_space and become free. |